Big River at Byrnesville, MO
Gauge height
2.70 ft
Streamflow
331 cfs
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 13 ft | 10.3 ft below |
| Minor flood | 16 ft | 13.3 ft below |
| Moderate flood | 20 ft | 17.3 ft below |
| Major flood | 28 ft | 25.3 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 30.2 ft | 1915-08-21 |
| 30.09 ft | 2017-05-01 |
| 29.37 ft | 1993-09-25 |
| 27.61 ft | 1993-11-16 |
| 27.57 ft | 1994-04-12 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Meramec River at Pacific, MO | 7.4 mi | Franklin County |
| Fox Creek at Allenton, MO | 7.9 mi | St. Louis County |
| Meramec River near Eureka, MO | 8.2 mi | St. Louis County |
| Williams Creek near Peerless Park, MO | 11.9 mi | St. Louis County |
| Keifer Creek near Ballwin, MO | 12.2 mi | St. Louis County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.